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MrRa [10]
2 years ago
12

What is the sum of the diagonals in a rectangle whose area is 25v3 and whose width is 5?

Mathematics
1 answer:
Nastasia [14]2 years ago
4 0

Answer:

Sum of diagonals = 20 units

Step-by-step explanation:

A(rectangle)=25\sqrt 3\: units^2\\w(rectangle) =5\: units

To find: Sum of diagonals

A(rectangle)=l(rectangle)\times w(rectangle)

\implies l(rectangle)=\frac{A(rectangle)}{w(rectangle)}

\implies l(rectangle)=\frac{25\sqrt 3}{5}

\implies l(rectangle)={5\sqrt 3}\: units

Let the diagonals of the rectangle be d_1\:\&\:d_2\: units

Diagonals of a rectangle are equal in measure.

\implies d_1=d_2=\sqrt{l(rectangle)^2+w(rectangle)^2}

(By Pythagoras Theorem)

\implies d_1=d_2=\sqrt{(5\sqrt 3)^2+(5)^2}

\implies d_1=d_2=\sqrt{75+25}

\implies d_1=d_2=\sqrt{100}

\implies d_1=d_2=10\: units

Sum \:of \:diagonals = d_1+d_2

\implies Sum \:of \:diagonals = 10+10

\implies Sum \:of \:diagonals = 20\: units

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